source: trunk/src/real.h @ 976

Last change on this file since 976 was 976, checked in by sam, 11 years ago

core: allow to cast reals to doubles in addition to floats.

File size: 1.2 KB
Line 
1//
2// Lol Engine
3//
4// Copyright: (c) 2010-2011 Sam Hocevar <sam@hocevar.net>
5//   This program is free software; you can redistribute it and/or
6//   modify it under the terms of the Do What The Fuck You Want To
7//   Public License, Version 2, as published by Sam Hocevar. See
8//   http://sam.zoy.org/projects/COPYING.WTFPL for more details.
9//
10
11//
12// The Real class
13// --------------
14//
15
16#if !defined __LOL_REAL_H__
17#define __LOL_REAL_H__
18
19#include <stdint.h>
20
21namespace lol
22{
23
24class real
25{
26    static int const BIGITS = 32;
27
28public:
29    inline real() { }
30    real(float f);
31    real(double f);
32
33    operator float() const;
34    operator double() const;
35
36    real operator -() const;
37    real operator +(real const &x) const;
38    real operator -(real const &x) const;
39    real operator *(real const &x) const;
40    real operator /(real const &x) const;
41
42    bool operator <(real const &x) const;
43    bool operator >(real const &x) const;
44    bool operator <=(real const &x) const;
45    bool operator >=(real const &x) const;
46
47    friend real fres(real const &x);
48
49    void print() const;
50
51private:
52    uint32_t m_size;
53    uint32_t m_signexp;
54    uint16_t m_mantissa[BIGITS];
55};
56
57} /* namespace lol */
58
59#endif // __LOL_REAL_H__
60
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